The first in Peter O'Donnell's Modesty Blaise novel Dragon's Claw(1978) got the usage mostly right.
The second in the UK TV series The Professionals "Hunter/Hunted" got it totally wrong. "A fully automatic laser-sight sniper rifle firing a 22LR cartridge effective to 1,000 yards - at least".
Neat trick on that last. If it could really do that, sales would have gone outta sight!
***The second in the UK TV series The Professionals “Hunter/Hunted” got it totally wrong. “A fully automatic laser-sight sniper rifle firing a 22LR cartridge effective to 1,000 yards - at least”. ****
LOL! They got it right except for the 1000 yards!